7216155345 has 16 divisors (see below), whose sum is σ = 13195255680. Its totient is φ = 3298813824.

The previous prime is 7216155329. The next prime is 7216155371. The reversal of 7216155345 is 5435516127.

It is not a de Polignac number, because 7216155345 - 2⁴ = 7216155329 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34362540 + ... + 34362749.

It is an arithmetic number, because the mean of its divisors is an integer number (824703480).

Almost surely, 2^7216155345 is an apocalyptic number.

It is an amenable number.

7216155345 is a deficient number, since it is larger than the sum of its proper divisors (5979100335).

7216155345 is a wasteful number, since it uses less digits than its factorization.

7216155345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68725304.

The product of its digits is 126000, while the sum is 39.

The square root of 7216155345 is about 84947.9566852552. The cubic root of 7216155345 is about 1932.4219324065.

The spelling of 7216155345 in words is "seven billion, two hundred sixteen million, one hundred fifty-five thousand, three hundred forty-five".